| 最后,我们需要DaemonSet来运行在集群中的所有实例: apiVersion: apps/v1 kind: DaemonSet metadata: name: ping-exporter namespace: d8-system spec: updateStrategy: type: RollingUpdate selector: matchLabels:   name: ping-exporter template: metadata:   labels:     name: ping-exporter spec:   terminationGracePeriodSeconds: 0   tolerations:   - operator: "Exists"   hostNetwork: true   serviceAccountName: ping-exporter   priorityClassName: cluster-low   containers:   - image: private-registry.flant.com/ping-exporter/ping-exporter:v1     name: ping-exporter     env:       - name: MY_NODE_NAME         valueFrom:           fieldRef:             fieldPath: spec.nodeName       - name: PROMETHEUS_TEXTFILE_DIR         value: /node-exporter-textfile/       - name: PROMETHEUS_TEXTFILE_PREFIX         value: ping-exporter_     volumeMounts:       - name: textfile         mountPath: /node-exporter-textfile       - name: config         mountPath: /config   volumes:     - name: textfile       hostPath:         path: /var/run/node-exporter-textfile     - name: config       configMap:         name: ping-exporter-config   imagePullSecrets:   - name: private-registry 
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